![Nameless Performance [15-21 WRX, 15-18 STI] Midpipe 3in | SUMP15WRX](https://cdn.shopify.com/s/files/1/0075/8703/7237/files/09_11_15_Nameless_Products_095__13272__06253__61403.webp?v=1740427392)
Nameless Performance [15-21 WRX, 15-18 STI] Midpipe 3in | SUMP15WRX
Upgrade your WRX or STI’s exhaust flow and tone with the Nameless Performance Catback Midpipe. Designed to pair with any of our axleback systems, this midpipe features a high-flow 3" primary circuit and a uniquely engineered triple-stepped Y-section for optimized performance, sound quality, and zero drone. Key Features 3" Mandrel-Bent Primary Circuit: Maximizes exhaust flow for improved horsepower Triple-Stepped Y-Section: Smooth transition from 3" to 2" circuits increases torque output and sound tuning Torque-Focused Design: Delivers higher torque than any other catback while matching peak horsepower numbers Drone-Free Performance: 2" dual rear circuits optimize sound frequency and resonance Materials & Build Quality Full T304 stainless steel construction for corrosion resistance and long service life TIG welded for precision and durability V-band latch-over clamps for secure fitment and easy adjustment Designed and built in the USA Installation & Components Three-piece midpipe for maximum ground and chassis clearance Includes V-band clamps and proprietary 3" donut gasket Factory-fit flanges for both downpipe and axleback connections Compatible with OEM or Nameless Performance downpipes Fitment 2015–2021 Subaru WRX 2015–2018 Subaru STI Works with OEM or Nameless axleback systems Not compatible with STI (SPT) dealer-installed components Performance Gains Up to +34 ft-lb torque and +22 whp at the wheels on the EJ-series STI Drone-free operation with optimized low-frequency tuning Get the best flow, sound, and torque from your WRX or STI with Nameless Performance’s catback midpipe. Engineered for daily drivability and track-ready performance